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shell syntax and file copy syntax AIX IBM

Posted on 2014-02-12
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what does the # character represent in an AIX IBM shell command?

Also can you give an example of how to copy the contents of an AIX IBM file into a text file via a shell command?
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Question by:pma111
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farzanj earned 500 total points
ID: 39853096
# generally represents a comment
#!  however is called shebang and tells the script location of the interpreter
eg  #!/bin/ksh

if you want to copy file
cp filename newfilename

Or

cat filename > newfilename
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by:pma111
ID: 39853106
if you ran

# grep SYSTEM /etc/security/user > 123.txt within a shell, would it work, or would the # comment out the command?

or put another way would
grep SYSTEM /etc/security/user >123.txt

work / run ok?
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by:farzanj
ID: 39853117
On the shell, if you are hitting the enter/return key and you get #, I think you are talking about the prompt sign

You can change it if you say

PS1="> "

To change it to > if you like.

Yes, if you are putting # yourself, that would comment it and it would therefore not run.

grep SYSTEM /etc/security/user >123.txt   work/run

YES
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